Diff Checker
Comparison Result
Online Diff Checker
Compare two text files and instantly spot the differences. Highlight additions, deletions, and changes with precision.
Powerful Features
Line-by-Line
Precise comparison algorithm detects changes per line
Color Coded
Green for additions, red for deletions - easy to read
Instant Diff
See differences immediately as you type or paste
Privacy First
Comparison happens locally - your text never leaves your browser
Large Text
Support for comparing large blocks of code or text
Developer Ready
Perfect for code reviews and config comparisons
How It Works
Paste Original Text
Paste the original version of your text or code in the left box
Paste Modified Text
Paste the new version in the right box
View Differences
Scroll down to see the comparison result with highlighted changes
Perfect For
Essential tool for writers, developers, and editors
👨💻 Code Reviews
Compare code snippets before committing
✍️ Content Editing
See what changed between drafts
⚙️ Config Files
Spot changes in configuration files
📝 Lists
Compare lists to find added or removed items
🔍 Debugging
Find subtle differences in output logs
📚 Plagiarism Check
Compare texts for similarities
Common problems this tool solves
Compare Code Snippets Before Commit
Ensure your code changes are exactly what you intend. Use our diff checker to preview additions and deletions before committing to Git.
Highlight Document Changes Between Drafts
Track every edit in your documents. Compare different versions of your writing to see what was added, removed, or rewritten.
Spot Differences in Configuration Files
Debug system errors by comparing config files. Quickly find changed ports, URLs, or environment variables.